Merge bitcoin/bitcoin#26206: test: check importing wallets when blocks are pruned throw an error

4aff7a48a4 test: check importing wallets when blocks are pruned throw an error (brunoerg)

Pull request description:

  This PR adds test coverage for the following error:
  https://github.com/bitcoin/bitcoin/blob/437b608df289c97fd88f1dd79bdc8359e1b1c5b1/src/wallet/rpc/backup.cpp#L513-L518

ACKs for top commit:
  andrewtoth:
    ACK 4aff7a48a4

Tree-SHA512: fbbf6056cb3759f726b8a5ff25fca51bf47e973e5d655ec164e2bec88e2dbd3b243677869d2cf33af268ea635ca0f2e9f737c4734077fc5a936ac3a24ad4b88b

test/functional/feature_pruning.py

@@ -358,6 +358,8 @@ class PruneTest(BitcoinTestFramework):
         self.restart_node(2, extra_args=["-prune=550"])
         self.log.info("Success")
 
+        assert_raises_rpc_error(-4, "Importing wallets is disabled when blocks are pruned", self.nodes[2].importwallet, "abc")
+
         # check that wallet loads successfully when restarting a pruned node after IBD.
         # this was reported to fail in #7494.
         self.log.info("Syncing node 5 to test wallet")